So the batshit plot this time was:
-Gourd is not working
-Mary Suika demands of whale to fix it
-Whale asks Marisa the ordinary fuckup to fix it
-Marisa is a fuckup and breaks it
-Dramatic cliffhanger
-That gourd was actually a fake that looks exactly like the real one, how convenient!
-Mary...
It's true and it's also true that author started writing this manga with some romcom in mind, it's also also true that he admitted on twitter about running out of ideas for the manga around the time Mina got the height "upgrade".